Question

Which image represents two equal displacements?

Two parallel vectors of the same length. The first is pointing east and the second pointing west.

Two parallel vectors. The first is pointing northeast and the second vector is shorter, pointing northeast.

Two collinear vectors tail to tip pointing up and to the right.

A vector east drawn tip to tail with a longer vector south.

Answer 1

The third image (the two collinear vectors tail-to-tip pointing up and to the right).

Equal displacements must have the same magnitude and direction. The other pictures either reverse direction (1), have different lengths (2 and 4), so they are not equal.